Anphar, S.a.

Jesus E Puchades

Jacinto M Mauri

Robert G Spickett

A process for producing basic aluminum magnesium carbonate, Al.sub.2 Mg.sub.6 (OH).sub.14 (CO.sub.3).sub.2.4H.sub.2 O, by carbonating an aluminum hydroxide (Al(OH).sub.3) and magnesium hydroxide aqueous reaction mixture with carbon dioxide in the presence of at least 6 moles of a base selected from the group consisting of ammonia, mono, di or trialkylamines, pyridine or piperidine, per mole of Al.sub.2 O.sub.3 present. The product is useful as an antacid.

Basic aluminum magnesium carbonate

A new basic aluminium magnesium carbonate of the formula Al.sub.2 Mg.sub.6 (OH).sub.14 (CO.sub.3).sub.2.4H.sub.2 O has been found to be useful in pharmaceutical formulations for the treatment of upper gastrointestinal tract disturbances associated with excess acid and pepsin secretion or biliary reflux.

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Barcelona, Spain

Jesus E Puchades